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8d107d1210
freebsd-dev/lib
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Jason Evans 8d107d1210 If multiple threads are blocked in sigwait() for the same signal that does 
not have a user-supplied signal handler, when a signal is delivered, one
thread will receive the signal, and then the code reverts to having no
signal handler for the signal.  This can leave the other sigwait()ing
threads stranded permanently if the signal is later ignored, or can result
in process termination when the process should have delivered the signal to
one of the threads in sigwait().

To fix this problem, maintain a count of sigwait()ers for each signal that
has no default signal handler.  Use the count to correctly install/uninstall
dummy signal handlers.

Reviewed by:	deischen
2000-06-27 21:30:16 +00:00
..
compat add libxpg4 2000-06-14 14:38:11 +00:00
csu Use the new machine-independent versions of crtbegin and crtend 2000-05-24 02:17:12 +00:00
libalias Fixed PunchFWHole(): 2000-06-27 14:56:07 +00:00
libatm Replace beforeinstall target with new variables used by .mk system. 2000-01-14 07:57:47 +00:00
libbind Build more components to get named to build. 1999-11-30 04:40:54 +00:00
libc change first release date to 4.1-R as 5.0-R won't be out for at least a 2000-06-26 21:23:57 +00:00
libc_r If multiple threads are blocked in sigwait() for the same signal that does 2000-06-27 21:30:16 +00:00
libcalendar Introduce .Lb macro to libcalendar manpage. 2000-04-22 15:51:37 +00:00
libcam Fix groff confusion for PS output. 2000-06-20 10:53:51 +00:00
libcom_err Replace beforeinstall target with new variables used by .mk system. 2000-01-14 07:57:47 +00:00
libcompat Remove single-space hard sentence breaks. These degrade the quality 2000-03-02 09:14:21 +00:00
libcrypt Oops, remove vestigial reference to SHS passwords. 2000-04-22 20:43:21 +00:00
libdevstat Introduce .Lb macro to libdevstat library manpage 2000-04-22 15:58:01 +00:00
libdisk Let Disk_Names() take advantage of the kern.disks sysctl if it's 2000-06-23 14:01:06 +00:00
libedit <blush> I tested the real code changes, but neglected to test the 2000-05-22 06:01:31 +00:00
libfetch Don't incorrectly report a protocol error when we get a 302 and redirects 2000-06-21 09:49:51 +00:00
libform Add missing source files. Sort SRCS. 2000-05-24 09:01:23 +00:00
libftpio Put the FTP_PASSIVE_MODE issue to rest once and for all. 2000-05-05 17:02:32 +00:00
libgnumalloc $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
libio Add functions which allow i/o memory to be accessed without forcing a 2000-02-12 14:57:01 +00:00
libipsec Fix typo. 2000-05-06 14:07:35 +00:00
libipx Introduce .Lb macro to libipx library manpage 2000-04-22 16:01:01 +00:00
libkse If multiple threads are blocked in sigwait() for the same signal that does 2000-06-27 21:30:16 +00:00
libkvm Remove obsolete reference to /var/db/kvm_kernel.db 2000-05-07 02:16:43 +00:00
libm Disconnect libm from the build tree. It's broken, not being 2000-05-02 14:16:19 +00:00
libmd Introduce .Lb macro to libmd manpages 2000-04-22 16:11:30 +00:00
libmenu Add missing source files. Sort SRCS. 2000-05-24 09:01:23 +00:00
libncp Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
libncurses Make a link from curses.3 -> ncurses.3 so that 'man 3 curses' does 2000-03-02 08:23:23 +00:00
libnetgraph - Make sure the message token returned by NgSendMsg() is non-negative 2000-06-21 23:01:07 +00:00
libopie Add some extra functions adapted from OpenBSD, in preparation for 2000-05-15 04:20:54 +00:00
libpam Update to the version of pam_ssh corresponding to OpenSSH 2.1 (taken 2000-05-30 09:03:15 +00:00
libpanel Add missing source files. Sort SRCS. 2000-05-24 09:01:23 +00:00
libpcap Don't try to compile in INET6 support when NOINET6 is defined. 2000-04-15 20:45:52 +00:00
libposix1e - Replace `.Va (cap_t)NULL'' with `.Dv NULL'' 2000-06-09 02:01:27 +00:00
libpthread If multiple threads are blocked in sigwait() for the same signal that does 2000-06-27 21:30:16 +00:00
libradius Replace beforeinstall target with new variables used by .mk system. 2000-01-14 07:57:47 +00:00
libresolv Don't build elf libresolv.so*, no elf freebsd binaries have used it ever. 1998-10-11 04:21:56 +00:00
librpcsvc $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
libskey Introduce .Lb macro to libskey manpage 2000-04-22 16:14:26 +00:00
libss sigset_t change (part 5 of 5) 1999-09-29 15:18:46 +00:00
libstand Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
libtacplus Supply only one author name per instance of %A, as per mdoc.samples(7). 2000-05-10 09:49:04 +00:00
libtelnet $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
libusb The USB library from NetBSD by Lennart Augustsson <lennart@augustsson.net>. 2000-06-11 18:19:14 +00:00
libusbhid The USB library from NetBSD by Lennart Augustsson <lennart@augustsson.net>. 2000-06-11 18:19:14 +00:00
libutil document sbsize limit. 2000-06-02 20:51:05 +00:00
libvgl Introduce .Lb macro to libvgl manpage 2000-04-22 16:17:38 +00:00
libwrap Don't try to compile in INET6 support when NOINET6 is defined. 2000-04-15 20:45:52 +00:00
libxpg4 Bump major to preserve 3.x binaries compatibility 2000-06-13 00:41:38 +00:00
liby $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
libz Remove single-space hard sentence breaks. These degrade the quality 2000-03-02 09:14:21 +00:00
msun Removed bogus 'l' suffixes in FP register to register instructions. 2000-06-06 12:12:36 +00:00
ncurses Add missing source files. Sort SRCS. 2000-05-24 09:01:23 +00:00
Makefile Disconnect libm from the build tree. It's broken, not being 2000-05-02 14:16:19 +00:00
Makefile.inc